The shifter should work on the 5 speed IIRC. Non caustic oven clean is good for cleaning engines and general grime but it seems to struggle against gearbox oil - be armed with spray can degreaser and a decent stiff scrubbing brush just in case. I'll have to look up in my Weber carb Bible what appropriate jetting is recommended for the 38DGES on a 2.0. Hopefully there's a reference specifically for the application...